Grade 80 U.S. Type Welded Master Link Assembly (WMA Type) is designed as the top connection point for multi-leg chain sling assemblies. Its welded construction and flat design allow smooth integration with omega links, while the high-strength Grade 80 alloy steel ensures safe and reliable lifting in industrial and construction applications.
| Type | Process | Key Advantage |
|---|---|---|
| Welded (WMA) (This Product) |
Flash Butt Welded (Bent Bar) |
Cost-Effective Wide range of custom dimensions. |
| Forged (MLA) (Alternative) |
Drop Forged (No Weld Seam) |
Seamless Profile Ideal for extreme fatigue environments. |
4-Leg Sling Config
WMA Assembly View
3-Leg Sling Config
Specifically engineered with two intermediate links to ensure tension is balanced across all sling legs, preventing individual leg overloading.
Utilizes high-precision welding technology to create a bond as strong as the parent metal. This allows for a massive range of sizes up to 1-inch chain compatibility.
Meets standard US dimensional requirements, guaranteeing a perfect fit with domestic crane hooks and rigging hardware.
Individually Proof Load tested to 2.5x WLL. Manufactured from quenched and tempered G80 alloy steel with a 4:1 design factor.
| Item No. | Chain Size | WLL (Tonnes) | Main Dimensions (mm) | Weight | Product Code | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| inch | 3 or 4 Legs (0-45°) |
Rope 5:1 | A | B | D | a | b | d | s | kg | ||
| 8-WMA-14 | 7/32 | 2.36 | 2.4 | 100 | 60 | 14 | 85 | 40 | 12 | 6 | 0.82 | 502045014 |
| 8-WMA-18 | 1/4 | 3.15 | 3.2 | 160 | 90 | 18 | 100 | 60 | 14 | 7.6 | 1.60 | 502045018 |
| 8-WMA-20 | 5/16 | 4.25 | 4.2 | 160 | 90 | 20 | 100 | 60 | 14 | 7.6 | 1.95 | 502045020 |
| 8-WMA-22 | 3/8 | 6.70 | 8.0 | 180 | 100 | 22 | 150 | 70 | 18 | 8.4 | 3.16 | 502045022 |
| 8-WMA-28 | 1/2 | 11.20 | 12.0 | 270 | 140 | 28 | 160 | 90 | 22 | 13.5 | 6.75 | 502045028 |
| 8-WMA-32 | 5/8 | 17.00 | 17.0 | 270 | 140 | 32 | 180 | 100 | 25 | 16.5 | 9.31 | 502045032 |
| 8-WMA-40 | 3/4 | 23.60 | 25.0 | 300 | 160 | 40 | 270 | 140 | 31 | 19 | 18.40 | 502045040 |
| 8-WMA-45 | 7/8 | 31.50 | 31.5 | 340 | 180 | 45 | 285 | 155 | 36 | 22 | 26.60 | 502045045 |
| 8-WMA-50 | 1 | 45.00 | 45.0 | 350 | 190 | 51 | 340 | 180 | 45 | 25 | 42.91 | 502045050 |
Grade 80 Sling Components are the long-established industry standard for chain slings and heavy lifting. Fully compliant with international lifting regulations and designed for durability.
Used to connect the sling to a crane or hoist hook.
End fittings for secure load attachment.
Essential hardware to join chains or fittings.
The core lifting medium and adjustment tools.
| Feature | Grade 80 | Grade 100 |
|---|---|---|
| Strength Level | Standard Industry Standard | +25% Higher |
| Component Size | Larger | Smaller (for same WLL) |
| Weight | Heavier | Lighter |
| Cost | More Cost-Effective | Higher |
